Casing for metal thermometers and the like



E. P. COLE.

CASING FOR METAL THERMOMETERS AND THE LIKEI APPLICATION FILED AUG.2.1919.

Patented Aug. 3, 1920.

UNITED `STATI-:s

PATENT OFFICE.

' e' 'IInWAaIJV r. COLE, f or cIiIcAGo, ILLINOIS.v

CAsING ron. IIIILTIILA THERMOMETERS AND-THE LIKE.

To all whom it may'ooacem:

Be it known that I, EDWARD P." COLE, .a citizen 'of the United States,residing at Chicago, in the` county of Cook and, Stateof Illinois, haveinvented certain new and useful Improvements in Casings for MetalThermometers and thelikeVof which the following is a specification. Y rY My invention. rel. testo 'acasing which in the particular embodimentillustrated in the accompanying drawings and hereinafter described isdesigned to'inclose` a bi-metal thermometer used for measuringtemperatures of several hundred degrees, such as are largely used forindicating the heat of ovens for baking food in stoves and ranges fordomestic or commercial purposes. The particular construction ofthethermometer has nothing to do with my present invention, which relatesentirelyvto a casing adapted to receive and support such a thermometerVproperly in a wall of the oven structure, 'or

serve any similar purpose; The object of my invention is to provide asimple,`attrac tive and desirable casing for such a device whichshall becheapl to` manufacture, easy to apply Ato the voven upon which the therfmometer is tombe used, andpwhichvshall be well adapted to serve thepurposes for which it was designed. AWith this objectin view myinvention resides inthe construction,

structural arrangement and organization of the members which make, upvmynovel and improved casing, as hereinafter explained and described, theessential elements of my invention being more particularly pointed outin the appended claims.

Figure 1 of the drawing forming a part of this specication is a faceview of a casing embodying my invention; Fig. 2 is a perspective of thelower or box member of the casing; Fig. 3 is a perspective of the dialmember; Fig. 4 is a perspective of the cover frame, showing theunderside thereof; and Fig. 5 is a central transverse section of thecasing.

The same reference characters indicate the same parts in all the guresof the drawing. The bottom or box member of my novel casing, see Fig. 2,may be conveniently formed of a sheetmetal blank cut and bent to form arectangular bottom section 1 and connected flanges or members formingsides 2 and ends 3, each of the latter having an outwardly extending ear4 in the same plane as the top of the sides 2. In the present insimilarmanner.

i' vSpecification of Letters Patent. Y Patented Aug. 3 1920. ApplicationledvAugust 2, 1919.` Seria1`No. -314,939. Y j

stances, as shown,thebirmeta1istrip 5 ofthe y thermometer device issecured to a Vblock 6 fixed to the bottom of the casing, and isoperatively connected with the ,indicating hand f7 pivotally mountedupon a post8 also secured to the bottom of the casing. A slot 9 in thebottom 4 is Vprovided adjacent the strip `5 to expose the latter to theheat of the oven.

The dial memberl 10, see F ig. 3, isialso formed of a rectangular sheetmetal blank which near each end is lformed with a fold or. crimplladapted to fit over and seat upon the 'upper edges of the ends-3 of thebox member. The intermediate portion of the dial plate member is formedwith a slot 12 Vextending from one side edge toward the center, ytoreceivev the post 8, and may be enameled or Vfinished in any suitablemanner and provided ywith a scale to coperate with .the indicating hand.Outside the line of the lcrimps 11 the flat end portions 13 lie on topofthe ears 4, and the parts 13 and 4 are formed with registeringorifices 14 to admit bolts by means of which the casing is secured tothe oven. These end portions 13 may be omitted, however, if desired. Itwill be understood the oven Wallis formed with an opening just largeenough to receive the box `member as far as the ears 4, and that thecasing is secured to the ovenwall by bolts uextending' therethrough.

p The cover frame 15, which may be a metal casting, is formed with vacentral display opening 16 exposing the .dial scale and hand andadjacent its margin bears upon and surrounds the outer edge of the dialmember 10.

The proportions and arrangement of the parts is such that between thetop of the folds 11 and the inner face of the cover frame there will bea space of proper size for the reception of a vcover glass 17 forprotecting the indicator hand.

The inner side of the cover frame 15 is formed with a pair of oppositebosses tapped for the reception of the threadedends of headed screwbolts 18 which extend from the inside of theoven wall through theorificesv in the parts 13 and 4 before mentioned, and. whichserveto'secure the casing in place in the oven wall.

' It is Vobvious that while my casing is` well adapted for theparticular use above described, it may be adapted to incase any desiredarticle and be secured in an opening in any kind of wall or otherstructure in a member formed with a bottom an I claim formed with abottom and side and end members, one pairof opposite members beinglonger than the other, a dial member formedwith parallel projectingfolds arranged to fit over said longer members, and a cover frame formedwith a display opening and having marginal flanges arranged to' receivesaid 'dial member.

2.A casing comprising a box member formed with Ya bottom and sideand/end members, one pair of opposite members being longer than theother, and being formed with earsprojecting parallel with said bottomand lying in the plane of the freev edges of the other sides, a dialvmember formed with parallel projecting folds arranged to fit over saidlonger members and' also arranged tov vseat upon said ears of the longermembers andthe edges of' the other members, and a cover frame formedwith a display opening and having marginal flanges arranged to'receivesaid dial member.

casing comprisinga boxV member formed with a bottom and opposite membersforming ends, said members being formed with outwardly extending earsparallel with said bottom, a dial member arvran ed to seat against saidoutwardly exten ing'ears of the ends of the box member,

said dial member and outwardly extending ears being formedwithregistering orifices, and a cover frame formed with a display openingand'having marginal flanges arranged to receive the edges of said dialmember. Y

4. A casing comprising Va rectan ular box opposite marginal membersforming ends, a rectangular dial member formed with parallel projectingfolds arranged to fit over said end members and with an indicator postslit intermediate said end members and parallel therewith, and a coverframe formed witha reetangulardisplay opening exposing the inner endof'said Vslit, and provided with marginal flanges arranged to receive theedges of saidv dial member.

5. A casing `comprising a sheet metal bottom formed with atleast twoopposite marginal members, a sheet metal dial member formed withprojecting folds arranged to fit over said :marginal members, and acover frame formedwith a display opening and arranged tov engage themargin of said dial member. Y

6. A casing comprising a sheet metal bottom formed with at least twoopposite marginal members, a sheet ,metal dial member formed withprojecting'folds arranged to fit over saidmarginal members, a coverframe formed with a display opening 'bearing upon said dial memberadjacent' its edges, and al glass cover plate arranged between saidvcover Vframe and the foldsof said dial member.

7. A casing comprising a rectangular Vsheet metal box memberV formedwith a bottom and opposite members forming ends, a

rectangular dial'member formed with parallel projecting,A folds arrangedto fit over Ysaid ends, and a cover'frame formed with a display openingand having flanges arranged to receive the vmargin of said dial member.

y8. A casing comprising aV rectangularV sheet metal box member formedwith a bot- .tom and opposite members forming ends, a rectangulardial'member formed with parallel projectingfolds arrangedto fit 4oversaid ends, a cover frame formed witha disy EDWARD i?.fooLE

